According to the designer, quoted after Boardgamegeek, “In Planta Nubo players grow energy-rich flowers and plants in cloudy gardens – the treetops of the Arbors. Deliver them to bee-like airships which transport them to the biomass converters to be transformed into green energy. Sow woods on the freshly harvested soil. Energize helpful modules while your woods, your bots and the Arbor produce desperately needed oxygen. Make good use of your tools to perform actions and use your garden bot to help you grow flowers. Supply your platform bot with energy to use modules and operate Oxyfarms. Turn your Arbor into the best oxygen production facility! If you produce the most oxygen by the end of the game you win!”
